Quick adjustable wrench



June 12, 1945. A QLLMANN V 2,378,241

QUICK ADJUSTABLE WRENCH Filed Aug. 1, 1944 2 Sheets-Sheet l Irwerztor a/hmm June 12, 1 945. QLLMANN 2,378,241

QUICK ADJUSTABLE WRENCH 7 Filed Aug. 1, 1944 2 Sheets-Sheet 2 Inventor fiJQ w/mm Patented June 12, 1945 'UNITED-STATES PATENT rr-"1e12 I "'2,s7s,z4-1'f i QUICK ADJUSTABLE WRENCH I Fred 'A.O1lmann, Gresham, Wis.' Application Aogusti, 1944, Seri'alNo. 547,540

4 Claims. (aisl -'s) The present invention relates to new and useful-improvements in wrenches of a type designed for use as a pipe wrench and for other purposes, and the invention has for its primary object to provide a movable jaw and a stationary jaw together with means for the quick adjustment of th movable jaw relative to the fixed jaw. A further object is to provide a wrench of this I character of simple and practical construction, which is efiicient and reliable in use, relatively inexpensive to manufacture and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a side elevational view showing the jaws of the wrench in a substantially closed position and with the shanks of the jaws locke against quick adjusting movement. I

Figure 2 is a similar view showing the shanks of the jaws in position for quick adjustment thereof.

wardly extendinglegs l'ldisposed at opposite sides of the shank 6.

The upper edge of the shank 6 is formed with notches l8 adapted for receivinga pin l9 extending transversely'of the sleeve l2-at the upper portion of thelegs l1.

A pin 20 is carried at the lower portion of the legs 11 and extends transversely beneath the shank 6 and on which is rotatably mounted a cam 2| positioned between the legs I1, the cam including an eccentrically formed camhump 22 and a finger-grip 23 extending from the pivotal mounting of the cam in a direction angularly Figure 3 is a side elevational view showing the forming the guide for the shanks of the jaws.

Figure 5 is an enlarged perspective view of the cam locking member for the shanks of the jaws.

Referring now to thedrawings in detail wherein for the purpose of illustration I have disclosed a preferred embodiment of the invention, the numeral 5 designates the handle of the wrench having the shank 6 of a stationary jaw extending from the handle. v

I A U-shaped guide 8 has its ends pivoted to the shank 8 adjacent its outer ends by means of a pin 9.

The movable jaw Ill includes a shank ll positioned substantially parallel to the shank 6 and slidably mounted in the guide 8.

A sleeve l2 slidably receives the shank H, the shank H being adjusted relative .to the sleeve by means of the knurled nut l3 threadedly engaged with the'threads I4 on the edges of the shank, the nut working in the openings IS in the opposite sides of the sleeve.

The lower edge of the sleeve I2 is formed with a guide l6 slidably receiving the shank G of the stationary jaw and the front edge of the sleeve is formed with a pair of spaced parallel downbe made.

However, when a quick adjustment of th jaws is desired, the finger-grip 23 is moved downwardly whereby to release the cam hump 22 from the lower edge of the shank 6 and the shank 6 may be moved relative to the shank H in a downward direction to disengage the pin l9 from the notches I8 as shown in Figure 2 of the drawings and a quick adjustment of the jaws may then The finger-grip portion 23 of the cam is then returned to the position as shown in Figure 1 which looks the jaws in their quick adjusted position;

It is believed that the details of construction and manner ofuse of the device will be readily understood from the foregoing without further detailed explanation.

Having described the claimed as new is:

. 1. A wrench including a stationary jaw anda movable jaw, said jaws having shanks disposed substantially in parallelism, a sleeve slidably receivin said shanks, threaded adjusting means between the shank of the movable jaw and the sleeve, a pin carried by the sleeve extending transversely of the shank of the stationary jaw, notches in one edge of the shank of the stationary jaw adapted for receiving said pin and actuating means between the sleeve and the opposite edge of the-shank of the stationary jaw for looking and releasing the pin from said notches to provide for the quick adjustment of said lastnamed shank.

what is 2. A wrench including a stationary jaw and a movable jaw, said jaws having shanks disposed substantially in parallelism, a sleeve slidably receiving said shanks, threaded adjusting means between the shank of the movable jaw and the sleeve, a pin carried by the sleeve extending transversely of the shank of the stationary jaw, notches in one edge of the shank of the stationary jaw adapted for receiving said pin, a cam device pivotally attached to the sleeve and engageable with the opposite edge of the shank of the stationary jaw and finger-gripping means carried by the cam for operating the latter in a manner to engage and disengage the pin from the shank of said stationary jaw.

3. A wrench comprising a movable jaw and a stationary jaw, each of said jaws including a shank disposed in substantial parallelism, a sleeve slidably receiving the shanks, a threaded adjusting means between the sleeve and the shank of the movable jaw, a pair of spaced parallel legs extending downwardly from the sleeve, a pin extending transversely of the legs between the shanks, notches on the upper edge of the shank of the stationary jaw adapted for selectively receiving the pin, and a manually operable cam pivoted on the legs and engageable with the lower edge of the shank of said stationary jaw to move the latter into and out of engagement with said pin to provide for the quick adjustment of the jaws relative to each other.

4. A wrench comprising a movable jaw and a stationary jaw, each of said jaws including a shank disposed in substantial parallelism, a U- shaped guide carried at the front end of the stationary shank and slidably receiving the movable shank, a sleeve slidably receiving the shanks, a threaded adjusting means between the sleeve and the shank of the movable jaw, a pair of spaced parallel legs extending downwardly from the sleeve, a pin extending transversely of the legs between the shanks, notches on the upper edge of the shank of the stationary jaw adapted for selectively receiving the pin, and a manually operable .cam pivoted on the legs and engageable with the lower edge of the shank of said stationary jaw to move the latter into and out of engagement with said pin to provide for the quick adjustment of the jaws relative to each other.

. FRED A. OLLMANN. 

